Adjustable extension-hanger.



No. 733,003. n PATENTED JULY 7, 1903. x H. s. BURLEY.

ADJUSTABLE EXTENSION HANGER.

APPLICATION FILED APR. 24, 1903.

H0 MODEL.

. I I I T on whom it ,may 001mm.- I

zen of the United States, and a resident of Chicago, in the county of Cook and State of Patented July 7,

ins-st s. BURLEY, or cIIIcAeo, ILLINOIS, Assrelvoaor oivit t-mmr To BLAIRA. EsT P, oFcHIoAeo, ltt njo ADJUSTABLE EXTENION-HANGER.

SPECIFIGATION' forming part of Letters Patent No. 733,003, dated Jul '7, 1903.

Application filed April 24,1903.

Be it known that I, HARRY S. BURLEY,-a citi- Illinois, have-invented certain new and useful Improvements in Adjustable Extension. Hangers, of which the following is a full, clear, and exact description.

The object of my invention is to provide a simple, economically-constructed, and perfect-operating adjustableextension-hanger for lamps, bird-cages, flower-baskets, &c., one of the principal features of which is that it can be locked by tilting the canopy thereof in the proper direction either against the winding up of the suspending-chains or the further paying out of the same or left unlocked, so asto leave theweight suspended therefrom free to be counterbalanced by the tension of thesprih'g of the chain-rewiuding devices. This I accomplish by the means hereinafterfullydescribed, and as particu larly pointed out in the claims.

In thedrawings, Figure 1 is a side view of myinvention withthe lower depending portions of the suspending-chains and with the canopy thereof removed. Fig.2 is a vertical central section of said invention, taken on dotted line 2 2, Fig. l, lookingin the direction indicated by the arrows. Fig. 3 is a horizontal section thereofytalgen on dotted line 3 8, Fig. 1, looking in the direction of the arrows, showing part of the annular fiange through which it strikes and the sheave carrying arms broken away. I

Referringto the drawings, A represents a vertical spindle, the body of which is cylindrical and the lower end of which merges into and has made integral therewith a boss at of greater diameter,which has two arms I) B projectingtherefrom in diametrically opposite directions. Extending downward from thisboss is a short screw-threadedstud c, which alines with the body of the s'pindle'and extends down through a central opening in a suitably-shaped canopy C, which latter is secured thereto and held in place, substantially as shown in Fig. 3, by a suitable nut d. The portion of the spindle immediately above the boss a is slightly greater in diameter than .suitable manner.

,the shell 6.

SerialNo. 154,043. (No model.)

jthe remainder of the length thereof above the same,"and has journ'aled thereon the hub of the lowercircular plate D of the drum, upon which the suspendingchains of my invention are wound. This drum comprises a circular hollow shell having an interior chamber, in which a coil contraction-spring E is placed,and this spring is wound around the portion of the spindle within said chamber and has its inner end secured thereto in any The outer end of spring E is suitablysecured to the circumferential sides or shell of the drum, and the normal tendency'of this spring when the chain unwinds from the drum isto rewind itself upon said spindle.

The drum just referred to for convenience and economy of manufacture comprises several parts and includes, besides the plate D, an annular shelle of a width corresponding to that of the periphery of the drum, which it assists in forming, and is provided with a circumferential flangef,projecting outwardly tial depression so made is a sleeve g, which is of such width that its upper edge is in the same horizontal plane as the upper edge of The lower edge of this sleeve 9 rests against the shoulder formed by thus decreasing the diameter of the upper portion of shell 6 and has an outwardly-projecting flange g, the circumference of the outer edge of which is' the same as that of flange f. The upper side of the drum is provided with a circular head F, the diameter of which is the same as flanges f and g, and thecentral portion of which is depressed so as to fit snugly within the inner circumference of the upper end of the shell 2. The parts of. the drum after they are assembled are held in position by a collar G, securedtothe upper end of the 9 QFFIC I ,from its lower side edge that fits tightly over ing or other means of support. The. drum thus constructed has two peripheral channels, the lower of which is between the fiangesfand g and the upper of which is between the flange g and the head F. A chain I is wound around the drum in the upper channel thereof and extends laterally therefrom over and around a concave sheave 2' and then downward through asuitable opening in the canopy, and a similar chain J is wound around the drum in the lower channel in the same direction as chain I and extends laterally therefrom in a direction opposite to that in which chain 1 extends to and around a concave sheave j and then down through a suitable opening in the canopy diametrically opposite chain I. Sheave z' is journaled in a suitable manner to the upturned end of the arm B, projecting from the boss at of the spindle, and sheave j is journaled in like manner to the end of the arm b of said boss, and the chains are prevented from riding over the edges of the concave circumference of these sheaves by inverted- J-shaped guards I J. The lowerends of the chains I and J are connected in any suitable manner to a cross bar or frame X, upon a suitable hook'at the center of length of which the object to be suspended is attached in any suitable manner.

Projecting down from the circumferential edge of plate ID is an annular flange H, the inner circumference of which is preferably parallel to the axis of the spindle A. Now projecting from the boss at of the spindle, preferably at right angles to arms I) and B, is a bracket K, the outer end of which supports and has preferably made integral therewith a transverserunwayk. Thisrunwaycomprises a platform or floor which inclines from its ends to its center of length and a straight vertical wall It, arising from the edge of this floor farthest from the inner circumference of the flange H, and suitable end walls. This runway is located adjacent to and just inside of the circumference of the flange H in such man ner that a ball R of substantially the diameter shown when placed in said runway and not otherwise engaged will, when the canopy is in a horizontal position, rest in the dip of said platform at its center of length. When, however, the canopy is inclined-to one side or to the other, the ball R will roll toward the end of the runway toward which the canopy is inclined and wedge between the straight vertical wall of said runway and the inner circumference of the flange H. When the canopy is inclined in one direction, the ball R will lock the drum, so as to prevent the paying out of the chains I and J and the consequent lowering of the lamp or other object supported thereby, and when the canopy is inclined in the opposite direction the ball will lock said drum, so as to prevent its revolution in such direction as to wind up chains I and J and raise the object suspended thereby.

When the drum is locked to prevent the rewinding of the chains, a slight pulling down upon said chains will cause the drum to revolve in such direction as to release ball R and unlock the drum, sothat it will be free to revolve in either direction, and when the drum is locked so as to prevent the unwinding of the suspending-chains therefrom it can be unlocked by lifting the suspended object slightly. In either case when released the ball R will gravitate to the center of length of the runway and in this position will be out of engagement with the drum and leave the drum free to either wind or unwind the suspending-chains according as desired.

It will be noticed that as a result of the construction of the locking devices of my invention the strain upon the parts thereofwill be in a plane radial to the axis of the spindle A and that in consequence there will not be a tendency to force the drum upward and spring the same or force the bracket K- downward away 7 from it. I do not, however, desire to be understood as limiting myself to the engagement of the ball R against the flange H, because, if desired, its engagement with the bottom of the plate D could be provided for even though not so desirable.

What I claim as new is 1. AneXtension-hanger comprising a horizontally-rotatable drum; suspending-chains wound thereon and gravity-controlled means, movable horizontally in either direction from its plane of rest to lock said drum against further revolution in the same direction.

2. Anextension-hanger comprising a horizontally-rotatable drum; suspending-chains wound thereon; and gravity-controlled means engaging the under side of said drum and movable horizontally in either direction from its plane of rest to lock said drum against further revolution in the same direction.

3. An extension-hanger comprising ahorizontally-rotatable drum; suspending-chains wound thereon; and a lock comprising a ball adjacent to the under side of said drum having a limited horizontal movement in either direction from its plane of rest which at the extremes of its movement locks said drum against further revolution in the direction of the extreme nearest which it approaches.

4:. An extension-hanger comprising a horizontally-rotatable drum; suspending-chains wound thereon; and a lock comprisinga hori zontal runway adjacent to the under side of said drum, and a ball having a limited longitudinal movement in said runway, and adapted to wedge against and lock said drum against further revolution when at the extreme of its movement in either direction therein,

5. An extension-hanger comprising a horizontally-rotatable drum; suspending-chains wound thereon; and a lock comprising a horizontal runway, the floor of which is inclined from its ends toward its center of length, ad-

jacent to the under side of said drum, and a ball having a limited longitudinal movement in said runway, and adapted to wedge against and lock said drum against further revolution when at the extreme of its movement in either direction therein. 6. An extension-hanger comprising a horizontally-rotatable drum, having a concentric annular flangeprojecting down fromits under surface; suspending-chains wound thereon;

gravity-controlled means movable horizontally in either direction adjacent to and within the inner circumference of said flange from its plane of rest to engage the inner circumference of said flange and lock said drum against further revolution toward the extreme near which said means are located.

7. An extension-hanger comprising a hori- V zontally-rotatable drum having a concentric annular flange projecting down from its under surface the inner circumference of which is parallel to the axis of said drum; suspendingchains wound thereon; and gravity-controlled means adjacent to and within the circumference of said flange and movable horizontally in eitherdirection from its plane of rest to engage the inner circumference of said flange and look said drum against further revolution in the direction nearest which said means are located.

8. An extension-hanger comprising a horizontally-rotatable drum having a concentric annular flange projecting down from its under surface; suspending-chains wound thereon; and a lock comprising a ball located adjacentto and movablein a straight line within the circumference of said flange and hay ing a limited horizontal movement in either direction from its 'plane of rest and-locking it said drum againstfurther revolution when at the extremes of its movement.

9.. An extension-hanger comprising a horizontallyrotatable drum having a concentric annular flange projecting down from its under surface; suspending-chains wound there:

on; and a clutch comprising asuitable l1orizontal runway located adjacent to and within the circumference of said annular flange the side of which adjacent to the inner circurnon; and a clutch comprising a suitable horizontal runway, the floor of which is inclined from itsends toward its center of length, lo-

cated adjacent to and within the circumference of said annular flange the side of which adjacent to the inner circumference of said flange being open, and a ball having a limited longitudinal movement in said runway,

and adapted to wedge against and lock "said drum against further revolution when at the extremes of its movement in either direction therefrom.

11. Anextension-hangercomprisingahori= zontally-rotatable drum having a concentric annular'flange projecting down from its under surface; suspending-chains wound thereon; and a clutch comprising a suitable hori* zontal runway, the floor of which is inclined from its ends toward its center of length and the vertical wall of which forms the side-of said runway farthest from the inner circumference of said annular flange and is straight from end to end, located adjacent to and within the circumference of said annular flange the side of which adjacent to the inner circumference of said flange being open, and aball havingalimited longitudinal movement in said runway, and adapted to wedge against and lock said drum against further revolution when at the extremes of its movement in either direction therefrom.

12. An extensiomhanger comprisinga horizontally-rotatable drum consisting of a lower circular plate, a circumferential shell the lower edge of which is provided with an outwardly-projecting circumferential flange, a

sleeve seated in the depressed outer circumference of the upper half of said shell whose lower edge is provided with an outwardlyprojecting circumferential flange, and a head corresponding to the circumference of the flanges of said shell and sleeve fitted over the top of the same; a vertical spindle on which said drum is journaled; a coil-spring inclosed within said drum having its inner end secured to said spindle and its outer end to said circumferential shell; and gravity-controlled means movable horizontally in either direction from its plane of rest and engagiingthe under side of said drum when at the extremes of its movement to lock the same against further revolution.

13. An extension-hanger comprisinga horizontally-rotatable drum consisting of a lower circular plate having a downwardly-projecting concentric annular flange, a circumferential shell the lower edge of which is provided with an outwardly-projecting circumferential flange, a sleeve seated in the depressed, outer circumference of the upper half of said shell whose lower edge is provided with an outwardly-proj ectin g circumferential flange, and a head corresponding to the circumference of the flanges of said shell and sleeve fitted over the top of the same; a vertical spindle on which said drum is journaled; a coil-spring inclosed within said drum having its inner end secured to said spindle and its outer end to said circumferential shell; and a lock comprising a ball adjacent to and having a movement in a straight line within the circumference of the same which is adapted to move in either direction from its plane of rest and engage and lock said drum against further IIO the flanges of said shell and sleeve fitted over the top of the same; a vertical spindle on which said drum is journaled; a coil-spring inclosed within said drum having its inner end secured to said spindle and its outer end to said circumferential shell; and a lock comprising a suitable horizontal runway adjacent to the under side of said drum and within the circumference of said annular flange,'and a ball having'a limited longitudinal move ment in said runway and adapted to wedge against and lock said drum against further revolution when at the extremes of its movement.

15. An extension-hangercomprisingahorizontally-rotatable drum consisting of a lower circular plate having a downwardly-projecting concentric annular flange, a circumferential shell the lower edge of which is provided with an outwardly-projecting circumferential flange, a sleeve seated in the depressed outer circumference of the upper half of said shell whose lower edge is'provided with an outwardly-projecting circumferential flange, and a head corresponding to the circumference of the flanges of said shell and sleeve fitted over the top of the same; a vertical spindle on which said drum is journaled; a coil-spring inclosed within said drum having its inner end secured to said spindle and its outer end to said circumferential shell; and a lock comprising av suitable horizontal runway, the floor of which is inclined from its ends toward its center of length, adjacent to the under side of said drum and within the circumference of said annular flange, and a ball having a limited longitudinal movement in said runway and. adapted to wedge against and lock said drum against further revolution when at the extremes of its movement.

'raooe 16. An extension-hangercomprisingahori zontally-rotatable drum consisting of a lower circular plate having a downwardly-projecting concentric annular flange, a circumferential shell the lower edge of which is provided with an outwardly-projecting circumferential flange, a sleeve seated in the depressed outer circumference of the upper half of said shell whose lower edge is pro vided with an outwardly-projecting circumferential flange, and a head corresponding to the circumference of the flanges of said shell and sleeve fitted over the top of the same; a vertical spindle on which said drum is journaled; a coil-spring inclosed within said drum having its inner end secured to said spindle and its outer end to said circumferent-ial'shell; and a lock comprising a suitable horizontal runway, the floor of which is inclined from its ends toward its center of length and the longitudinal wall of which farthest from said annular flange being straight from end to end, adjacent to the under side of said drum and within the circumference of said annular flange, and a ball having a limited longitudinal movement in saidrunway and adapted to wedge against and lock said drum against further revolution when at the extremes of its movement.

17. An extension-hanger comprising a vertical spindle having an enlarged boss on its lower end; arms projecting therefrom diametrically opposite each other sheaves journaled to the extremes of said arm; a bracket projecting radially" from said boss at right angles to said arms; a horizontal transverse runway carried on the outer end of said bracket; an automatically-returnable drum journaled on said spindle above said boss the under side of which has a concentric annular flange projecting downward therefrom and a ball having a limited longitudinal movement in said runway and adapted to engage theinner circumference of said flange and lock said drum when at the extremes of its movement.

In testimony whereof I have hereunto set my hand this 17th day of April, 1903.

HARRY S. BURLEY.

Witnesses:

BLAIR A. Es'rnr, FRANK D. THOMASON. 

